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<head>
    <meta charset="UTF-8">
    <script type="text/javascript" src="js/jquery-1.12.4.js"></script>
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    <style type="text/css">
        .box{
            width: 200px;
            height: 200px;
            background:
            url("");
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    <title>Document</title>
</head>
<body>
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</body>
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